If I could give no stars, I wouldn't. Theft. The battery is weak, it drops in seconds. It's worth nothing.

Well, let me say in advance that I bought it to clean the laptop's fans without needing to open it up and without using compressed air because many times you can't avoid the risk of spraying liquid. The device includes various tips, one of which is a brush tip. It has 3 levels, with the last one being the strongest but not at the level of a compressed air spray. The package includes a charging cable but no adapter. The battery lasts heavily for 10 minutes in continuous use on the third level. Overall, the build quality seems a bit above extremely cheap Chinese products. Personally, it does the job for which I bought it.